CA2572693C - Vehicle occupant detection using relative impedance measurements - Google Patents

Vehicle occupant detection using relative impedance measurements Download PDF

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Publication number
CA2572693C
CA2572693C CA002572693A CA2572693A CA2572693C CA 2572693 C CA2572693 C CA 2572693C CA 002572693 A CA002572693 A CA 002572693A CA 2572693 A CA2572693 A CA 2572693A CA 2572693 C CA2572693 C CA 2572693C
Authority
CA
Canada
Prior art keywords
electrode
electrodes
impedance
load
seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002572693A
Other languages
English (en)
French (fr)
Other versions
CA2572693A1 (en
Inventor
Shiuh-An Shieh
Gregory T. Thompson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Elesys Americas Corp
Original Assignee
Nidec Elesys Americas Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nidec Elesys Americas Corp filed Critical Nidec Elesys Americas Corp
Publication of CA2572693A1 publication Critical patent/CA2572693A1/en
Application granted granted Critical
Publication of CA2572693C publication Critical patent/CA2572693C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0024—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat
    • B60N2/0025—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat by using weight measurement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0024—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat
    • B60N2/0026—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat for distinguishing between humans, animals or objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/003—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat
    • B60N2/0033—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat mounted on or in the foam cushion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0035—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor data transmission, e.g. wired connections or wireless transmitters therefor; characterised by the sensor data processing, e.g. seat sensor signal amplification or electric circuits for providing seat sensor information
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/266—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children with detection or alerting means responsive to presence or absence of children; with detection or alerting means responsive to improper locking or installation of the child seats or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/0153—Passenger detection systems using field detection presence sensors
    • B60R21/01532—Passenger detection systems using field detection presence sensors using electric or capacitive field sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/10—Field detection presence sensors
    • B60N2210/12—Capacitive; Electric field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/30—Temperature sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2220/00—Computerised treatment of data for controlling of seats
    • B60N2220/20—Computerised treatment of data for controlling of seats using a deterministic algorithm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2230/00—Communication or electronic aspects
    • B60N2230/20—Wireless data transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2230/00—Communication or electronic aspects
    • B60N2230/30—Signal processing of sensor data

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Child & Adolescent Psychology (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Seats For Vehicles (AREA)
  • Air Bags (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
CA002572693A 2006-01-26 2007-01-02 Vehicle occupant detection using relative impedance measurements Expired - Fee Related CA2572693C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/342,009 US7436299B2 (en) 2001-03-02 2006-01-26 Vehicle occupant detection using relative impedance measurements
US11/342,009 2006-01-26

Publications (2)

Publication Number Publication Date
CA2572693A1 CA2572693A1 (en) 2007-07-26
CA2572693C true CA2572693C (en) 2009-12-29

Family

ID=37963580

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002572693A Expired - Fee Related CA2572693C (en) 2006-01-26 2007-01-02 Vehicle occupant detection using relative impedance measurements

Country Status (7)

Country Link
US (1) US7436299B2 (zh)
EP (1) EP1813480A3 (zh)
JP (1) JP4960725B2 (zh)
KR (1) KR100926213B1 (zh)
CN (1) CN100540363C (zh)
CA (1) CA2572693C (zh)
MX (1) MX2007001020A (zh)

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070144535A1 (en) * 2004-09-21 2007-06-28 Hegde Anant V Implant for treatment of sleep disorders
WO2007089655A1 (en) * 2006-01-26 2007-08-09 Tk Holdings Inc. Occupant classification system
JP4539614B2 (ja) * 2006-02-07 2010-09-08 株式会社デンソー 乗員検知システム
EP1870294B1 (en) * 2006-06-23 2012-05-23 Hitachi Computer Products (Europe) S.A.S. Improved method using capacitive sensors for morphology discrimination of a passenger seating in an automotive seat
WO2008064864A2 (de) * 2006-11-27 2008-06-05 Ident Technology Ag Anordnung zur detektion von körperteilen mittels absorption eines elektrischen nahfeldes
WO2008092637A1 (en) * 2007-01-29 2008-08-07 Johnson Controls Gmbh Operation equipment for a vehicle
US7656169B2 (en) 2007-02-06 2010-02-02 Iee International Electronics & Engineering S.A. Capacitive occupant detection system
EP1978482A1 (en) * 2007-04-03 2008-10-08 Intellisist, Inc. System and method for managing customer queuing
DE102007047716A1 (de) 2007-10-05 2009-04-09 Robert Bosch Gmbh Sensoreinrichtung zur kapazitiven Abstandsermittlung
US7821415B1 (en) * 2008-04-04 2010-10-26 Kimberlin Denver K Pneumatically operated patient bed monitor
US7876106B2 (en) * 2008-04-28 2011-01-25 Delphi Technologies, Inc. System and method for detecting an object at a location
US8237455B2 (en) * 2008-04-28 2012-08-07 Delphi Technologies, Inc. Occupant detection system with environmental compensation
US7880480B2 (en) * 2008-04-28 2011-02-01 Delphi Technologies, Inc. Occupant detection system and method for calibrating
US20090295412A1 (en) * 2008-04-28 2009-12-03 Delphi Technologies, Inc. Occupant Detector with Electronic Interference Compensation
US8091960B2 (en) * 2008-05-01 2012-01-10 Delphi Technologies, Inc. Seat assembly having seat heating and occupant detection
US8138772B2 (en) * 2008-08-15 2012-03-20 Tk Holdings Inc. Capacitive sensing and method
US8358208B2 (en) * 2008-11-11 2013-01-22 Infineon Technologies Ag Method and device for sensing a body
JP4780187B2 (ja) * 2008-12-11 2011-09-28 株式会社デンソー 静電容量式乗員検知システム
JP5655223B2 (ja) * 2009-01-30 2015-01-21 株式会社フジクラ 乗員姿勢検知装置
US8284041B2 (en) * 2009-09-28 2012-10-09 Ford Global Technologies, Llc Method and apparatus for in-vehicle presence detection and driver alerting
CN102725183B (zh) * 2009-11-19 2015-05-27 Tk控股公司 乘客检测和分类系统
US9278629B2 (en) 2009-11-19 2016-03-08 Tk Holdings Inc. Occupant detection and classification system
US8500194B2 (en) * 2009-11-20 2013-08-06 Delphi Technologies, Inc. Seat occupant detection circuit isolation from seat heating circuit using a common mode choke
US20110133755A1 (en) * 2009-12-08 2011-06-09 Delphi Technologies, Inc. System and Method of Occupant Detection with a Resonant Frequency
US20110140891A1 (en) * 2009-12-14 2011-06-16 Delphi Technologies, Inc. Electrode for an Occupant Sensing System Having Fault Detection and Method of Operating the Same
US8400323B2 (en) * 2009-12-21 2013-03-19 Delphi Technologies, Inc. Capacitive occupant sensing system and method
US20110163878A1 (en) * 2010-01-07 2011-07-07 Gray Charles A Capacitive occupant detection system having aging compensation and method
US20110190987A1 (en) * 2010-02-04 2011-08-04 Delphi Technologies, Inc. Occupant detection system and method
US20110190980A1 (en) * 2010-02-04 2011-08-04 Delphi Technologies, Inc. Occupant detection system and method
US20110246026A1 (en) * 2010-04-02 2011-10-06 Gary Stephen Shuster Vehicle console control system
US8219286B2 (en) 2010-04-28 2012-07-10 Delphi Technologies, Inc. Noise reduction for occupant detection system and method
US20110307148A1 (en) * 2010-06-10 2011-12-15 Delphi Technologies, Inc. Occupant detection system and method having heater element electrical isolation
US8364439B2 (en) 2010-07-09 2013-01-29 Raytheon Company System and method for detection of concealed cargo in a vehicle by center of mass measurement
LU91722B1 (en) * 2010-08-20 2012-02-21 Iee Sarl Seat heater
DE102010049962B4 (de) * 2010-10-28 2014-01-02 Austriamicrosystems Ag Sensoranordnung und Verfahren zum Betreiben einer Sensoranordnung
KR101232432B1 (ko) * 2010-11-12 2013-02-12 현대모비스 주식회사 승객식별장치
JP5754145B2 (ja) * 2011-01-25 2015-07-29 セイコーエプソン株式会社 超音波センサーおよび電子機器
TWI431295B (zh) * 2011-03-30 2014-03-21 Inst Information Industry 電流迴路檢測系統及其電流迴路檢測方法
CN103029668A (zh) * 2011-10-10 2013-04-10 苏州卡泰克电子科技有限公司 一种基于薄膜开关技术的车辆乘员类型检测装置及其使用方法
JP6050008B2 (ja) * 2012-03-08 2016-12-21 ソニー株式会社 判別装置、判別方法および判別システム
US20130304315A1 (en) * 2012-05-10 2013-11-14 Elesys North America Inc. Operator recognition system
JPWO2013183653A1 (ja) * 2012-06-04 2016-02-01 株式会社フジクラ 乗員位置検知装置及びエアバッグ展開制御システム
US9126502B2 (en) 2012-08-14 2015-09-08 Delphi Technologies, Inc. Dual electrode occupant detection system and method
JP2016504227A (ja) * 2012-10-02 2016-02-12 ティーケー ホールディングス インク．Ｔｋ Ｈｏｌｄｉｎｇｓ Ｉｎｃ． 乗員検出及び分類システム
US9120396B2 (en) * 2013-01-11 2015-09-01 Tk Holdings Inc. Occupant classification system with seat back sensor
LU92179B1 (en) * 2013-04-09 2014-10-10 Iee Sarl Capacitive sensing device
LU92178B1 (en) * 2013-04-09 2014-10-10 Iee Sarl Capacitive sensing device
KR102131188B1 (ko) 2013-05-15 2020-07-07 젠썸 캐나다 유엘씨 콤비네이션 히터 및 센서
KR101799842B1 (ko) 2013-10-11 2017-11-21 젠썸 캐나다 유엘씨 히팅장치에 의한 탑승자 감지
US9228882B2 (en) * 2013-12-17 2016-01-05 Delphi Technologies, Inc. Vehicle seat occupant detection device with an adjustable threshold
JP6406850B2 (ja) * 2014-03-31 2018-10-17 株式会社Ｓｕｂａｒｕ シートベルト及びこのシートベルトを有するシートベルト装置
DE112015002799T5 (de) * 2014-06-13 2017-03-16 Tk Holdings Inc. Insassenerfassungs- und Klassifizierungssystem
FI125745B (fi) * 2014-07-18 2016-01-29 Maricare Oy Anturijärjestely
LU92541B1 (en) * 2014-09-10 2016-03-11 Iee Sarl Radar sensing of vehicle occupancy
KR101673684B1 (ko) * 2014-10-28 2016-11-07 현대자동차주식회사 차량의 승객 검출 시스템 및 이를 이용한 차량의 공조 제어 방법
US9475405B2 (en) * 2014-11-19 2016-10-25 Ford Global Technologies, Llc Vehicle occupant classification
WO2016131639A1 (en) * 2015-02-18 2016-08-25 Iee International Electronics & Engineering S.A. Capacitive seat occupancy detection system operable at wet conditions
LU92671B1 (en) * 2015-02-27 2016-08-29 Iee Int Electronics & Eng Sa Weight-responsive vehicle seat occupant detection and classification method and system
JP6358567B2 (ja) 2016-01-26 2018-07-18 マツダ株式会社 静電センサを用いたシートヒータ制御装置
KR101905961B1 (ko) * 2016-07-26 2018-11-21 현대자동차주식회사 시트의 객체 구분 장치
DE102016014858B4 (de) * 2016-12-14 2019-05-29 Paragon Ag Elektrostatische Sensoranordnung
JP6769383B2 (ja) * 2017-04-13 2020-10-14 トヨタ自動車株式会社 自動運転装置、及び通知方法
US11211931B2 (en) * 2017-07-28 2021-12-28 Joyson Safety Systems Acquisition Llc Sensor mat providing shielding and heating
WO2019022765A1 (en) 2017-07-28 2019-01-31 Joyson Safety Systems Acquisition Llc SENSOR CARPET PROVIDING SHIELDING AND HEATING
DE102017009004B4 (de) * 2017-09-27 2020-02-20 Paragon Ag Sitzbelegungserkennungs- und Insassenklassifizierungsvorrichtung für Fahrzeugsitze
DE102018000884A1 (de) * 2018-02-03 2019-08-08 Leopold Kostal Gmbh & Co. Kg Kapazitives Messsystem
DE102018222068B4 (de) 2018-12-18 2020-10-08 Audi Ag Automatisches Lichtsystem
CN110187392A (zh) * 2019-07-15 2019-08-30 湖南长城医疗科技有限公司 计算频率方式的电容感应型液体检测的方法及装置
CN110562180B (zh) * 2019-09-17 2020-06-23 浙江吉利汽车研究院有限公司 一种根据不同乘员点爆安全气囊的方法、系统及车辆
JP7148203B2 (ja) * 2019-11-13 2022-10-05 Ｎｅｃプラットフォームズ株式会社 電子機器
US12009873B2 (en) 2021-11-11 2024-06-11 Samsung Electronics Co., Ltd. Method of recognizing immersion and electronic device for performing the same
CN115363366A (zh) * 2022-09-09 2022-11-22 永艺家具股份有限公司 一种基于电容式触摸感应的智能桌椅控制方法
DE102022127962A1 (de) * 2022-10-21 2024-05-02 Bayerische Motoren Werke Aktiengesellschaft Fortbewegungsmittel und elektrische Schaltungsanordnung zur Erkennung einer aktuellen Sitzbelegung in einem Fortbewegungsmittel

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885566A (en) 1986-12-22 1989-12-05 Aisin Seiki Kabushiki Kaisha Apparatus for detecting the wearing of a seat belt assembly
US5164659A (en) 1991-08-29 1992-11-17 Warren Schultz Switching circuit
EP0560351B1 (en) 1992-03-13 1997-12-29 Matsushita Electric Industrial Co., Ltd. Presence detecting and safety control apparatus
US6397136B1 (en) 1997-02-06 2002-05-28 Automotive Technologies International Inc. System for determining the occupancy state of a seat in a vehicle
US5402075A (en) 1992-09-29 1995-03-28 Prospects Corporation Capacitive moisture sensor
CA2165983A1 (en) 1993-06-22 1995-01-05 Wilhelm Sonderegger Device for detecting the presence of persons on seats
US5366241A (en) 1993-09-30 1994-11-22 Kithil Philip W Automobile air bag system
US5844415A (en) 1994-02-03 1998-12-01 Massachusetts Institute Of Technology Method for three-dimensional positions, orientation and mass distribution
US5914610A (en) * 1994-02-03 1999-06-22 Massachusetts Institute Of Technology Apparatus and method for characterizing movement of a mass within a defined space
DE4417827C2 (de) 1994-05-20 1996-04-04 Linde Ag Verfahren und Sensor zur Anwesenheitsdetektion von Personen
US5691693A (en) 1995-09-28 1997-11-25 Advanced Safety Concepts, Inc. Impaired transportation vehicle operator system
US5802479A (en) 1994-09-23 1998-09-01 Advanced Safety Concepts, Inc. Motor vehicle occupant sensing systems
US5602734A (en) 1994-09-23 1997-02-11 Advanced Safety Concepts, Inc. Automobile air bag systems
US6012007A (en) 1995-12-01 2000-01-04 Delphi Technologies, Inc. Occupant detection method and apparatus for air bag system
US6161070A (en) 1996-02-23 2000-12-12 Nec Home Electronics, Inc. Passenger detection system
US5948031A (en) 1996-02-23 1999-09-07 Nec Technologies, Inc. Vehicle passenger sensing system and method
WO1997039920A1 (en) 1996-04-23 1997-10-30 Advanced Safety Concepts, Inc. Vehicle occupant sensing
US5844486A (en) 1997-01-02 1998-12-01 Advanced Safety Concepts, Inc. Integral capacitive sensor array
US5808552A (en) 1996-11-25 1998-09-15 Hill-Rom, Inc. Patient detection system for a patient-support device
US5878620A (en) 1997-01-23 1999-03-09 Schlege Systems, Inc. Conductive fabric sensor for vehicle seats
JPH10236271A (ja) 1997-02-26 1998-09-08 Nec Home Electron Ltd 乗員検知システム
US6043743A (en) 1997-02-26 2000-03-28 Nec Corporation Passenger detecting system and passenger detecting method
EP0996557B1 (en) 1997-07-25 2012-10-31 Methode Electronics, Inc. Capacitive sensing in vehicles
US6208249B1 (en) * 1997-09-03 2001-03-27 Nec Corporation Passenger detection system
JPH11312907A (ja) * 1997-12-18 1999-11-09 Matsushita Electric Ind Co Ltd 整合回路チップ、整合回路付きフィルタ、共用器、及び移動体通信機器
IT1298816B1 (it) 1998-03-27 2000-02-02 Sgs Thomson Microelectronics Circuito di commutazione con tensione di uscita variabile fra una tensione di riferimento ed una tensione negativa
US6556137B1 (en) 1998-07-28 2003-04-29 Nec Corp. Passenger detecting system and air bag apparatus using the same
US6043734A (en) 1998-10-14 2000-03-28 Code Alarm, Inc. Optical shock sensor
US6392542B1 (en) 1999-07-12 2002-05-21 Automotive Systems Laboratory, Inc. Occupant sensor
US6283504B1 (en) 1998-12-30 2001-09-04 Automotive Systems Laboratory, Inc. Occupant sensor
EP1065097A4 (en) 1999-01-27 2001-11-14 Furukawa Electric Co Ltd OCCUPANT DETECTION DEVICE
JP4234247B2 (ja) 1999-01-27 2009-03-04 古河電気工業株式会社 シートセンサ
WO2000050261A2 (en) 1999-02-24 2000-08-31 Advanced Safety Concepts, Inc. Capacitive sensors for vehicular environments
JP2000306462A (ja) 1999-04-23 2000-11-02 Fujikura Ltd 着座検出システム
JP3364885B2 (ja) 1999-05-13 2003-01-08 アイシン精機株式会社 着座検出装置
US6329913B1 (en) 1999-10-05 2001-12-11 Nec Technologies, Inc. Passenger detection system and method
US6329914B1 (en) 1999-10-05 2001-12-11 Nec Technologies, Inc. Thickness measurement system and method for vehicle occupant detection
JP4157677B2 (ja) * 1999-10-06 2008-10-01 タカタ株式会社 乗員拘束保護装置
US6816077B1 (en) * 2001-03-02 2004-11-09 Elesys North America Inc. Multiple sensor vehicle occupant detection for air bag deployment control
US6499359B1 (en) * 2001-07-09 2002-12-31 Nartron Corporation Compressible capacitance sensor for determining the presence of an object
US6696948B2 (en) * 2001-11-02 2004-02-24 Elesys North America, Inc. Wet seat protection for air bag control occupant detection

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JP4960725B2 (ja) 2012-06-27
CN100540363C (zh) 2009-09-16
CA2572693A1 (en) 2007-07-26
US7436299B2 (en) 2008-10-14
KR100926213B1 (ko) 2009-11-09
MX2007001020A (es) 2008-11-14
JP2007197001A (ja) 2007-08-09
KR20070078365A (ko) 2007-07-31
EP1813480A3 (en) 2007-08-15
US20060187038A1 (en) 2006-08-24
CN101007525A (zh) 2007-08-01
EP1813480A2 (en) 2007-08-01

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